3648732438 has 32 divisors (see below), whose sum is σ = 7908890976. Its totient is φ = 1115532288.

The previous prime is 3648732433. The next prime is 3648732463. The reversal of 3648732438 is 8342378463.

It is a super-2 number, since 2×3648732438² = 26626496808226847688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3648732433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136731 + ... + 161222.

It is an arithmetic number, because the mean of its divisors is an integer number (247152843).

Almost surely, 2^3648732438 is an apocalyptic number.

3648732438 is an abundant number, since it is smaller than the sum of its proper divisors (4260158538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3648732438 is a wasteful number, since it uses less digits than its factorization.

3648732438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298128.

The product of its digits is 2322432, while the sum is 48.

The square root of 3648732438 is about 60404.7385392901. The cubic root of 3648732438 is about 1539.5034715108.

The spelling of 3648732438 in words is "three billion, six hundred forty-eight million, seven hundred thirty-two thousand, four hundred thirty-eight".